Multiple collisions in crystal high-order harmonic generation

唐栋; 卞学滨

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Multiple collisions in crystal high-order harmonic generation

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摘要

We theoretically investigate high-order harmonic generation(HHG)in crystals induced by linearly polarized laser fields.We obtain the HHG spectra by solving the semiconductor Bloch equations and analyze the radiation process by different models.Here we propose a multiple collision model,in which the electrons and holes are produced at different times and places.It is found that the multiple collision trajectories can help us comprehensively and better explain the results of the quantum calculation.Moreover,we find that the harmonic suppression occurs due to the overlap of multiple collision trajectories.

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《中国物理：英文版》 |2022年第12期|182-189|共8页
作者
唐栋; 卞学滨;
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作者单位

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics;

Wuhan Institute of Physics and Mathematics;

Innovation Academy for Precision Measurement Science and Technology;

Chinese Academy of Sciences;

Wuhan 430071;

China;

School of Physical Sciences;

University of Chinese Academy of Sciences;

Beijing 100049;

China;

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原文格式 PDF
正文语种 chi
中图分类分子物理学、原子物理学;
关键词
high-order harmonic generation; ultrafast optics; Bloch electron dynamics;

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Multiple collisions in crystal high-order harmonic generation

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